US Patent Issued to CANON on Nov. 3 for "Developing device including supplying roller with magnetic flux density for controlling developer movement" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,849, issued on Nov. 3, was assigned to CANON K.K. (Tokyo).

"Developing device including supplying roller with magnetic flux density for controlling developer movement" was invented by Tomoyuki Sakamaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A developing device includes a developing roller to convey toner and a supplying roller to supply the toner. A region where an absolute value of a magnetic flux density in a normal direction of the supplying roller is 5 [mT] or less exists downstream of a position where a magnetic flux density of a third magnetic pole of the supplying roller is maximum, and exists upstream of a position where a magn...